OK, Mr Murali, let me do some corrections for you:
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Improper statement 1: "that PQWL starts when GN finishes"
Correction 1 : PQWL starts only when PQ finishes, in some trains, and when both GN and PQ finish in other train. It is not dependent on only GN quota.
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more...
Improper statement 2: "Do take into account the TIME FACTOR of booking/confirmation."
Correction 2 : <No correction - irrelevant statement in this context>
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Improper statement 3 : "and when PQWL is fulfilled, and seats are still available from PQ, they are given to GNWL passengers"
Explanation 3 : This can never happen, because GNWL is charted first and then only PQWL is charted. So there is no question of vacant seats of PQ being alloted to GNWL passengers at charting, as this is invalid scenario.
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Improper statement 4: "Note in this PNR that the passengers have been accommodated in different coaches ! Why because PQ has specific berths in the trains."
Correction 4 : <No correction - irrelevant statement in this context>
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Please visit Blog 28909 to understand:
- how WL begins
- how is PQ used.
There are other blogs which clarify how charting is done.